Tread for footwear



FIG. 1 is a bottom plan view of a tread for footwear, showing my new design;

FIG. 2 is a side elevational view thereof, the opposite side being a mirror image; and,

FIG. 3 is an end elevational view thereof.

The broken line showing of an article of footwear is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a tread for footwear, as shown and described. 